Add flextras library
Editor.Model: add new operation, separator buttons, resize class after
children
Merge remote-tracking branch 'origin/master' into editor_migration
Fix error when changing view mode on mobile
Merge remote-tracking branch 'origin/master' into editor_migration

Conflicts:
	org.flowerplatform.web.common/.actionScriptProperties
	org.flowerplatform.web.mobile/.actionScriptProperties